<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
    <script src="js/vue.js"></script>
  </head>
  <body>
    <di id="app"></di>
  </body>
  <script>
    var login = {
      template: "<h1>这是登陆组件</h1>"
    };
    var vm = new Vue({
      el: "#app",
      data: {},
      render: function(createElements) {
        return createElements(login);
        //return的结果或替换el制定的容器
      }
    });
  </script>
</html>
